<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="./css/editormd.min.css">
</head>
<body>
<div id="markdown"><textarea style="display: none;"></textarea></div>

<script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.min.js"></script>
<script src="./editormd.min.js"></script>
<script>
$(function(){
    var Editor = editormd('markdown', {
        height: 640
    })
})  
</script>
</body>
</html>